[INFO] fetching crate tcp-warp 0.2.0...
[INFO] checking tcp-warp-0.2.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate tcp-warp 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate tcp-warp 0.2.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tcp-warp 0.2.0
[INFO] finished tweaking crates.io crate tcp-warp 0.2.0
[INFO] tweaked toml for crates.io crate tcp-warp 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasi v0.10.2+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded miow v0.2.2
[INFO] [stderr]   Downloaded net2 v0.2.37
[INFO] [stderr]   Downloaded fnv v1.0.7
[INFO] [stderr]   Downloaded futures-channel v0.3.14
[INFO] [stderr]   Downloaded futures-macro v0.3.14
[INFO] [stderr]   Downloaded futures-executor v0.3.14
[INFO] [stderr]   Downloaded futures-task v0.3.14
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.19
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.7
[INFO] [stderr]   Downloaded tokio v0.2.25
[INFO] [stderr]   Downloaded pin-utils v0.1.0
[INFO] [stderr]   Downloaded futures v0.3.14
[INFO] [stderr]   Downloaded futures-sink v0.3.14
[INFO] [stderr]   Downloaded uuid v0.8.2
[INFO] [stderr]   Downloaded futures-io v0.3.14
[INFO] [stderr]   Downloaded futures-util v0.3.14
[INFO] [stderr]   Downloaded bytes v0.5.6
[INFO] [stderr]   Downloaded pin-project-lite v0.1.12
[INFO] [stderr]   Downloaded futures-core v0.3.14
[INFO] [stderr]   Downloaded mio v0.6.23
[INFO] [stderr]   Downloaded slab v0.4.3
[INFO] [stderr]   Downloaded getrandom v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07f77f80a00be4f41d4720b4a588f11fe5f7d59f1af2f6ffe83cedc182237513
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "07f77f80a00be4f41d4720b4a588f11fe5f7d59f1af2f6ffe83cedc182237513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07f77f80a00be4f41d4720b4a588f11fe5f7d59f1af2f6ffe83cedc182237513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f77f80a00be4f41d4720b4a588f11fe5f7d59f1af2f6ffe83cedc182237513", kill_on_drop: false }`
[INFO] [stdout] 07f77f80a00be4f41d4720b4a588f11fe5f7d59f1af2f6ffe83cedc182237513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 860b7eda0d6b0d5e72e659ebf9cee911460444e7674babec8adcab5bfce91bde
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "860b7eda0d6b0d5e72e659ebf9cee911460444e7674babec8adcab5bfce91bde", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking tcp-warp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.14s
[INFO] running `Command { std: "docker" "inspect" "860b7eda0d6b0d5e72e659ebf9cee911460444e7674babec8adcab5bfce91bde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "860b7eda0d6b0d5e72e659ebf9cee911460444e7674babec8adcab5bfce91bde", kill_on_drop: false }`
[INFO] [stdout] 860b7eda0d6b0d5e72e659ebf9cee911460444e7674babec8adcab5bfce91bde